576 hedge funds and large institutions have $10.5B invested in MPLX in 2025 Q3 according to their latest regulatory filings, with 54 funds opening new positions, 221 increasing their positions, 123 reducing their positions, and 45 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

0.65% less ownership

Funds ownership: 21.27%20.62% (-0.65%)

6% less capital invested

Capital invested by funds: $11.2B → $10.5B (-$672M)

7% less funds holding in top 10

Funds holding in top 10: 3028 (-2)

Holders
576
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
28
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$143M
Puts
$96.3M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
401
$299K
402
$298K
403
$296K
404
$292K
405
$290K
406
$290K
407
$286K
408
$282K
409
$281K
410
$281K
411
$281K
412
$281K
413
$280K
414
$279K
415
$279K
416
$277K
417
$277K
418
$275K
419
$273K
420
$272K
421
$272K
422
$271K
423
$270K
424
$269K
425
$269K